Seed-borne fungi associated with oat seeds and their effect on seed germination and seedling growth

Wang, Jianjun; Zhou, Yu; Xue, Lian; Wei, Xuekai; White, James F.; Chen, Taixiang; Li, Chunjie

doi:10.1007/s42161-022-01270-4

Cited by 3 publications

(3 citation statements)

References 44 publications

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“…This phenomenon may be attributed to the gradual increase in the proportion of alkaline salts during salt-alkali stress, resulting in elevated pH. High pH in solutes inhibited of key enzyme activities for germination within the seeds, led to nutrient deficiency within the cells, and ultimately impeded seed germination 24 , 27 , 39 .…”

Section: Discussionmentioning

confidence: 99%

“…The evaluation of salt and alkali tolerance on the stage of seed germination was followed this criteria outlined in Wang et al 39 . The germination percentages resulting from the application of NaCl, NaHCO 3 , and mixed stress treatments were served as the dependent variable (y), while the concentrations of the respective salt stress treatments were served as the independent variable (x) in establishing a regression equation.…”

Section: Methodsmentioning

confidence: 99%

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Effect of salt-alkali stress on seed germination of the halophyte Halostachys caspica

Zhang,

Wang

et al. 2024

Sci Rep

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The increasing global phenomenon of soil salinization has prompted heightened interest in the physiological ecology of plant salt and alkali tolerance. Halostachys caspica belonging to Amaranthaceae, an exceptionally salt-tolerant halophyte, is widely distributed in the arid and saline-alkali regions of Xinjiang, in Northwest China. Soil salinization and alkalinization frequently co-occur in nature, but very few studies focus on the interactive effects of various salt and alkali stress on plants. In this study, the impacts on the H. caspica seed germination, germination recovery and seedling growth were investigated under the salt and alkali stress. The results showed that the seed germination percentage was not significantly reduced at low salinity at pH 5.30–9.60, but decreased with elevated salt concentration and pH. Immediately after, salt was removed, ungerminated seeds under high salt concentration treatment exhibited a higher recovery germination percentage, indicating seed germination of H. caspica was inhibited under the condition of high salt-alkali stress. Stepwise regression analysis indicated that, at the same salt concentrations, alkaline salts exerted a more severe inhibition on seed germination, compared to neutral salts. The detrimental effects of salinity or high pH alone were less serious than their combination. Salt concentration, pH value, and their interactions had inhibitory effects on seed germination, with salinity being the decisive factor, while pH played a secondary role in salt-alkali mixed stress.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effect of salt-alkali stress on seed germination of the halophyte Halostachys caspica

Zhang,

Wang

et al. 2024

Sci Rep

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“…The salt and alkaline tolerance level of seeds refers to the standard of (Wang et al, 2015) 37 . The germination rate after NaCl stress, NaHCO 3 stress, and mixed stress treatment is used as the dependent variable (y), and the corresponding salt stress treatment concentration is used as the independent variable (x) to establish a regression equation.…”

Section: Evaluation Of Salt and Alkaline Resistancementioning

confidence: 99%

Effect of Saline-alkali Stress on Seed Germination of the Halophyte Halostachys caspica

Zhang

Wang

et al. 2023

Preprint

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The process of soil salinization and the preponderance of saline water sources all over the world represent one of the most harmful abiotic stresses to plant growth. In nature, soil salt and alkali coexist, and the interaction of salt and alkali is an important feature of saline-alkali stress. Halostachys caspica is a salt-tolerant halophyte belonging to Amaranthaceae and widely distributed in arid and saline-alkali areas in Xinjiang, Northwest China. This paper studied the response of the germination of the desert halophyte Halostachys caspica to different types of salt stress, aiming to provide a theoretical basis for development and utilization of halophytes growing in saline-alkali soils. The results showed that the seed germination of Halostachys caspica was not significantly inhibited when the salt concentration was low (≤ 200 mmol/L), but with the increase of salt concentration, the germination rate of seeds dropped sharply, and the recovery germination rate at high concentration was higher than that at low concentration, when salt was removed. Step-by-step regression analysis showed that at the same concentration, the alkaline salt inhibited seed germination more severely than the neutral salts; the inhibitory effect of the mixed salt and mixed alkali on seed germination is heavier than that of the mono-salt and mono-alkali; under mixed salt alkali stress, the higher the alkaline salt content, the higher the degree of inhibition on seed germination; indicating that alkaline salt play a major role in mixed saline-alkali stress.

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Seed-borne bacterial synthetic community resists seed pathogenic fungi and promotes plant growth

Luo,

Huang,

et al. 2024

Journal of Applied Microbiology

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Aims In this study, the control effects of synthetic microbial communities composed of peanut seed bacteria against seed aflatoxin contamination caused by Aspergillus flavus and root rot by Fusarium oxysporum were evaluated. Methods and Results Potentially conserved microbial synthetic community (C), growth-promoting synthetic community (S), and combined synthetic community (CS) of peanut seeds were constructed after 16 S rRNA Illumina sequencing, strain isolation, and measurement of plant growth promotion indicators. Three synthetic communities showed resistance to root rot and CS had the best effect after inoculating into peanut seedlings. This was achieved by increased defense enzyme activity and activated salicylic acid (SA) -related systematically induced resistance in peanuts. In addition, CS also inhibited the reproduction of A. flavus on peanut seeds and the production of aflatoxin. These effects are related to bacterial degradation of toxins and destruction of mycelia. Conclusions Inoculation with a synthetic community composed of seed bacteria can help host peanuts resist the invasion of seeds by A. flavus and seedlings by F. oxysporum and promote the growth of peanut seedlings.

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Seed-borne fungi associated with oat seeds and their effect on seed germination and seedling growth

Cited by 3 publications

References 44 publications

Effect of salt-alkali stress on seed germination of the halophyte Halostachys caspica

Effect of salt-alkali stress on seed germination of the halophyte Halostachys caspica

Effect of Saline-alkali Stress on Seed Germination of the Halophyte Halostachys caspica

Seed-borne bacterial synthetic community resists seed pathogenic fungi and promotes plant growth

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